Sentences for rapists and sex attackers should be brought up to date with advances in technology and tactics used by offenders, according to new draft guidelines.
Judges are being urged by the Sentencing Council to take into account the psychological and long-term effects on victims, as well considering new factors such as filming or photographing a rape, when deciding on punishments.
A tougher maximum sentence of 19 years should be given for "one-off" rapes, a limit currently only available for those who attack the the same victim over a course of time or rape multiple victims, the guidelines said.
The changes, which are under a 14-week public consultation, are designed to make sure paedophiles, people-traffickers and rapists who operate alone or in gangs are dealt with better in courts in England and Wales.
Sentencing Council member Lord Justice Treacy said: "We're improving guidance for courts to help them deal with these incredibly complex, sensitive and serious offences.
"The perspective of victims is central to the council's considerations. We want to ensure sentences reflect everything the victim has been through and what the offender has done. We are looking at the whole context, not just the physical offence but also the tactics employed by offenders like grooming activity, the targeting of vulnerable victims or abuse of a position of trust."
Judges are asked to take into account factors such as stalking and previous abuse by offenders, and the targeting of vulnerable victims such as those in care.
The council said the review of the guidelines has come about because the nature of offending has changed. There is now a greater understanding of how perpetrators use technology in offences involving indecent images of children and in cases of sexual exploitation and child grooming.
For child sex offences the council said it wanted to increase the focus on the behaviour of offenders, how children may have been groomed or exploited, and whether offenders abused a position of trust. It also said factors such as the use of alcohol or drugs to facilitate the offence and the use of gifts or bribes to coerce a victim should be taken into account.
People have been asked to respond to the guidance, which covers 54 "varied offences", by going to www.sentencingcouncil.org.uk.